1989 - 180,000 km
2009 - 150,000 km
2013 - 64,000 km
2016 - 60,000 km
2017 - 76,000 km
2006 - 299,000 km
2014 - 30,000 km
2018 - 94,343 km
2018 - 95,888 km
2015 - 80,000 km
2012 - 115,000 km
1999 - 80,270 km